hopopt         0 HOPOPT
icmp           1 ICMP
igmp           2 IGMP
ggp            3 GGP
ipv4           4 IPv4
st             5 ST
tcp            6 TCP
cbt            7 CBT
egp            8 EGP
igp            9 IGP
bbn-rcc-mon   10 BBN-RCC-MON
nvp-ii        11 NVP-II
pup           12 PUP
emcon         14 EMCON
xnet          15 XNET
chaos         16 CHAOS
udp           17 UDP
mux           18 MUX
dcn-meas      19 DCN-MEAS
hmp           20 HMP
prm           21 PRM
xns-idp       22 XNS-IDP
trunk-1       23 TRUNK-1
trunk-2       24 TRUNK-2
leaf-1        25 LEAF-1
leaf-2        26 LEAF-2
rdp           27 RDP
irtp          28 IRTP
iso-tp4       29 ISO-TP4
netblt        30 NETBLT
mfe-nsp       31 MFE-NSP
merit-inp     32 MERIT-INP
dccp          33 DCCP
3pc           34 3PC
idpr          35 IDPR
xtp           36 XTP
ddp           37 DDP
idpr-cmtp     38 IDPR-CMTP
tp++          39 TP++
il            40 IL
ipv6          41 IPv6
sdrp          42 SDRP
ipv6-route    43 IPv6-Route
ipv6-frag     44 IPv6-Frag
idrp          45 IDRP
rsvp          46 RSVP
gre           47 GRE
dsr           48 DSR
bna           49 BNA
esp           50 ESP
ah            51 AH
i-nlsp        52 I-NLSP
narp          54 NARP
mobile        55 MOBILE
tlsp          56 TLSP
skip          57 SKIP
ipv6-icmp     58 IPv6-ICMP
ipv6-nonxt    59 IPv6-NoNxt
ipv6-opts     60 IPv6-Opts
cftp          62 CFTP
sat-expak     64 SAT-EXPAK
kryptolan     65 KRYPTOLAN
rvd           66 RVD
ippc          67 IPPC
sat-mon       69 SAT-MON
visa          70 VISA
ipcv          71 IPCV
cpnx          72 CPNX
cphb          73 CPHB
wsn           74 WSN
pvp           75 PVP
br-sat-mon    76 BR-SAT-MON
sun-nd        77 SUN-ND
wb-mon        78 WB-MON
wb-expak      79 WB-EXPAK
iso-ip        80 ISO-IP
vmtp          81 VMTP
secure-vmtp   82 SECURE-VMTP
vines         83 VINES
ttp           84 TTP
iptm          84 IPTM
nsfnet-igp    85 NSFNET-IGP
dgp           86 DGP
tcf           87 TCF
eigrp         88 EIGRP
ospfigp       89 OSPFIGP
sprite-rpc    90 Sprite-RPC
larp          91 LARP
mtp           92 MTP
ax.25         93 AX.25
ipip          94 IPIP
scc-sp        96 SCC-SP
etherip       97 ETHERIP
encap         98 ENCAP
gmtp         100 GMTP
ifmp         101 IFMP
pnni         102 PNNI
pim          103 PIM
aris         104 ARIS
scps         105 SCPS
qnx          106 QNX
a/n          107 A/N
ipcomp       108 IPComp
snp          109 SNP
compaq-peer  110 Compaq-Peer
ipx-in-ip    111 IPX-in-IP
vrrp         112 VRRP
pgm          113 PGM
l2tp         115 L2TP
ddx          116 DDX
iatp         117 IATP
stp          118 STP
srp          119 SRP
uti          120 UTI
smp          121 SMP
ptp          123 PTP
fire         125 FIRE
crtp         126 CRTP
crudp        127 CRUDP
sscopmce     128 SSCOPMCE
iplt         129 IPLT
sps          130 SPS
pipe         131 PIPE
sctp         132 SCTP
fc           133 FC
rsvp-e2e-ignore 134 RSVP-E2E-IGNORE
udplite      136 UDPLite
mpls-in-ip   137 MPLS-in-IP
manet        138 manet
hip          139 HIP
shim6        140 Shim6
wesp         141 WESP
rohc         142 ROHC
ethernet     143 Ethernet
reserved     255 Reserved
